Back story
Bought the truck 1-1-22 145,017 miles 5400 hrs no leaks no oil pressure issues IRRC it was around 30 at idle and over 40 on the highway. I do not remember how fast it built its full pressure. it was 74deg in Fort Worth when I bought the truck and by the time I drove it the 45 miles...
Are these factory wires? They say MSD on the boots. I doubt they are but figure I would ask. I think its time for new plugs and wires. Took it to the car wash and driving home had miss on #6 open the hood and there was water all over the engine bay. Guess I need to start replacing cowling...
I have been reading threads for the last 2 hrs trying to make sure I get the right equipment. Here is what I think I know, feel free to correct me.
I have to have something to read codes and it needs to be a tech 2 level machine at a minimum if i want to be efficient at repairing my own...
So chasing a few issues on the Yukon and came across something on the Mitchell wiring diagram I don't understand. In the attached image the wiring diagram keeps referring to a 10 series and 20 series. I have circled them in red. Is this a connector series or a harness series? How do you know...
So I have a new to me 2012 Yukon xl Denali with 145k on it. The DIC buttons to the right of the cluster and the Pedal adj / park asst / traction control buttons do not light up at night like all the other buttons in the truck. Has anyone ran into this? Are they supposed to light up? Shouldn't...
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